Diana helped break barriers in raising awareness for HIV and performed charity work across the globe – from visiting leprosy hospitals in Indonesia in 1989, to helping to remove landmines in Angolan fields in Africa in 1997.

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The charities selected by Harry and Meghan include the Children’s HIV Association, the Myna Mahila Foundation which helps women in Mumbai’s slums, the Crisis homelessness charity, conservation group Surfers Against Sewage and Scotty’s Little Soldiers, which supports children who have lost a parent while serving in the British military.

“To have been personally chosen by Prince Harry and Meghan Markle is an incredible honour for Scotty’s Little Soldiers and we are extremely grateful for the opportunity,” the charity’s founder, Nikki Scott, said.

“Having met Prince Harry at Buckingham Palace last year, I know that the Armed Forces and looking after the children our heroes have left behind is close to his heart.”

Harry, a former army officer and veteran of two tours in Afghanistan, has been a prominent campaigner for military veterans.